Automatic phonograph



Dec.13,193s. RRERBE 2,139,812

AUTOMATIC PHONOGRAPH -PI l doooooooo 230 E-q' oooooooooo 2% INVENTOR.P/ufw i. Leaf.

ATTORNEY.

Dec. 13, 1938. R. R. ERBE AUToMA'rI-c PHoNoGRAPH Filed Decv. 3, 1936INVENTOR. Km Pff A. Emir.

ATTORNEYS.

Dec. 13, 1938. R. R. ERBE AUTOMATIC PHONOGRAPH 6 Sheets-Sheet 3 FiledDec. 3, 1936 Z Z J f Il? Z M M l? 0 z/ tJ l5 M. 4 M m n l M M H Z l@ 0 ZH (Zo 4 M l. 0

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R. R. ERBE AUTOMATIC PHONOGRAPH Filed Dec. 5, 1956 6 Sheets-Sheet 4INVENTOR. @u PH RLT/515'.

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ATTORN E YS.

Dec. 13, 1938. R. R. ERBE 2,139,812

AUTOMATIC PHONOGRAPH Filed Dec. 3, 1936 6 Shams-Sheet 5 INVENTOR. v FmPH ,EK/FE.

A'ITORNEYJ.

Dec. 13, 1938. R. R. ERBE 2,139,812

AUTOMATIC PHONOGRAPH Filed Dec. 3, 1956 6 Sheets-Sheet 6 'ljn T1INVENTOR. ,Bw/ff R. ERBE,

ATTORNEY@ Patented Dee. 13, 1938 UNITED lSTATES PATENT OFFICE AUTOMATICPHONOGRAPH Ralph R. Erbe, Fort Wayne, Ind., assignor, by

mesne assignments, to Reconstruction Finance Corporation, Chicago, Ill.,a corporation Application December 3, 1936, Serial No. 113,995'

11 Claims.

This invention relates to an automatic phonograph of the record-changingtype and relates principally to the typein which a plurality of recordsare stored in a magazine and may be automatically removed therefrom forplaying in a predetermined sequence or may be selectively removed at theWill of the operator. tures of the invention, however, are applicable toother types of automatic phonographs.

One object of the invention is to improve and simplify the mechanism ofphonographs of this type. To this end, the machine is provided with amagazine of simple and light construction in which the records arestored on edge, each in a separate compartment. Mechanism is providedfor manipulating the magazine to present a predetermined record inposition opposite a transfer member by means of which it is rolled fromthe magazine to a carrier which places it upon 20 theusual turntable forplaying. Mechanism is also provided for rotating the magazine to presentopposite sides of the records.

Other objects and features of the invention will be understood from theaccompanying draw- '25 ings and the following description and claims:

Fig. 1 is a plan View showing that part of the mechanism located above adeck plate which serves as a fixed base for the support of therecord-changing mechanism. Fig. 2 is a plan view with parts in sectionshowing the mechanism located beneath the deck plate, the outline of thedeck plate being indicated by broken lines 2|. Fig. 3 is an elevationalview of. one side of the machine. Fig. 4 is a sectional view takensubstantially on the line 4 4 of Fig. 3 with parts cut away to showother parts in detail. Fig. 5 is a fragmentary sectional view takenv onthe line 5 5 of Fig. 3. Fig. 6 is a fragmentary sectional view taken onthe line 6 6 of Fig. 3. Fig. '7 is a sectional view taken on the line 11 of Fig.- 3

with parts cut away to show other parts in detail. Fig. 8 is a sectionalview in elevation taken on the line 8 8 of Fig. 9. Fig. 9 is asectionalview in elevation taken on the line 9 9 of Fig. 3. Fig. 10 is afragmentary plan view in section taken on the line -IIJ I0 of Fig. 3.Fig. 11-is a plan view with parts in section of a portion of themechanism used for initiating the recordchanging cycle. tional Viewtaken substantially on the line |l2 |2 of Fig. 5. Fig. 13 is aperspective view of acam used for controlling the rotation of themagazine. Fig. 14 is a perspective view of certain levers associated.with said cam.' Fig. 15 isa fragmentary sectional view in elevation ofa por- Certain fea- Fig. 12 is a fragmentary section of the recordselecting mechanism taken on the line l5 |5 of Fig. 16. Fig. 16 is arear vlew with parts out away of a portion of an assembly of pushbuttons used for selecting records to be played. Figure 17 is a detailedfragmentary sec- 5 tional view of the push button assembly.

In the form of the invention shown by way of illustration in thedrawings, the stationary frame of the apparatus consists of a base plate20 and a deck plate 2l supported thereon by l0 lcorner posts 22, all ofwhich may be contained :ries a collar 29 secured thereto (Fig. 4) uponwhich rests the usual rotatable turntable 30. The upper end of the shaft21 extends through4 the turntable to form a centering pin 3l. Thus themotor 23, when actuated,I continuously rotates the turntable 30.

The shaft 2l has splined thereto immediately beneath the deck plate 2la. clutch member 32 adapted to engage a mating clutch member 33 which isfreely rotatable on the shaft 21 and whichv rests upon the bracket 28.The clutch member 33 has worm threads 34 formed thereon 5 which engagethe teeth of a worm gear 35 secured to a horizontal shaft 36. 'I'heshaft 36 is journaled at one end in the bracket 28 and at the oppositeend -in a bracket 3l depending from the deck plate 2|.' Said shaftcarries a plurality d of cams, each of which controls a. certain portionof the record-changing mechanism. The shaft and cams are so arrangedthat a recordchanging cycle is completed by one complete rotation of.the shaft. This single rotation is initiated when the clutch member` 32is pressed downwardly to engage the clutch member 33 and j is terminatedwhen the clutch member 32 is again moved upwardly.

.Clutch operating mechanismv 50 The clutch 32 is operated to start therecordchanging cycle at the completion of playing of each record. Forthis purpose a clutch yoke 38 (Figs. 4 and 11) is pivotally mounted on apin 55 39 supported vupon the bracket 28 and is provided with pins 40engaging a groove 4| in the hub of the clutch member 32. The yoke 38 hasan extending arm 42 carrying a pin 43 which engages a leaf spring 44secured to the underside of the deck plate 2|. The spring 44 is providedwith a. humped portion 45 which serves as a detent for the pin 43 andholds the same against accidental movement either in the upper or lowerposition. A pin 46 serves as a stop for the pin 43 to limit the upwardmovement thereof. A vertical pin 41 is slidably mounted in an embossment48 formed on the deck plate 2| and engages at its lower end an adjustingscrew 49 carried by the yoke 38. The collar 29 is provided with adownwardly extending point 50 which rotates through a path inside of thepin 41 in the rotation'of the turntable. A flexible arm 5| having aninturned finger 52 is movable by movement of the pickup arm 53 andstylus 54 in the playing of the record on the turntable as will bedescribed in more detail hereinafter. the playing of a record, thefinger 52 is moved inwardly through an aperture 55 in the embossment 48into a position in the path of the point 50. In this position the nger52 is located above the pin 41 and is struck by the point 50 on the nextrotation of the turntable and is downwardly pressed against said pin.This downward pressure moves the yoke 38 about the pin 39 and pressesthe clutch member 32 downwardly against the resilient action of thespring 44. In this movement the pin 43 passes the hump 45 in said springand is thereafter retained in the downward position, in which positionthe clutch members 32 and 33 are in engagemeent and the cam shaft 36 isrotated to perform the recordchanging cycle.

The lever 5| is freely rotatable about a bushing 56 (Figs. '1 and 1l)which in turn is pivotally mounted on a boss 51 formed on the deck plate2|. The arm 5| is held in place on said bushing by means of upper andlower collars 58 and 59 which are secured to said bushing. The upper endof the bushing 56 carries a yoke 68 to which the pickup arm 53 ispivotally attached by means of a pin 6|. A pair of fingers 62 and'63 arepivotally mounted by means of pins 64 in suitable slots formed in theside of the collar 59 and are connected together by a tension spring 65.Said fingers engage a pin 66, carried by the arm 5|. The arm 5| issupported midway of its length on a fixed support member 61 beneath thedeck plate 2|. The movement of the fingers 62 and 63 toward each otherabout their pivot pins 64 is limited by the conformation of the slots inwhich they operate so that they normally assume the position shown inFig. 12. Their movement away from each other is not so limited and,therefore, the fingers may resiliently press thepin 56 to move the arm5| through a limited distance in each direction. The outward movement ofthe arm 5| is limited by an upturned hook 68 on the support member 61and the inward movement is limited by engagement of the finger 52 withthe projection 50.

In the operation of the apparatus just described, the stylus 5,4 and thepickup arm 53 are moved inwardly by the grooves of the record during theplaying thereof. In this movement, the bushing 56 is rotated, carryingwith it the collar '59 and the finger 62. Just prior to the completionof playing off-.a record; the linger 62 strikes the pin 66 and when thestylus enters the steeply pitched terminal groove of the record, thefinger.

At the completion of path of the projection 50, thus operating theclutch32 to start the record-changing cycle. At the rst movement in therecord-changing cycle, the pickup arm is swung outwardly to clear therecord, as will be described in more detail hereinafter. In thismovement, the finger 63 strikes pin 66 and withdraws the finger 52 fromthe path of the projection 50.

For disengaging the clutch at the end of the record-changing cycle,there is provided a cam 69 having a point 10 engageable with a block 1|secured to a link 12 (Fig. 4). The link 12 is secured at its upper endto one of the pins 4|l and is resiliently supported by means of a wirespring 13 secured thereto and resting freely upon the shaft 36. In theposition of the parts assumed during the playing of a record, as shownin Fig. 4, the block 1| is held clear of the point 10 -by the spring 13.Thus the downward movement of the yoke 38, when the record-changingcycle is started, moves the block 1| against the rear vface of the point10 where it does not interfere with the start of rotation of shaft 36 inthe direction of the arrow in Fig. 4 but is in position to be engaged'block 1|, to move the block to the initial position of Fig. 4.

Pickup arm manipulating mechanism The first operation in therecord-changing cycle is the raising of the stylus from the record onthe turntable and the swinging of the pickup arm to clear the record. Toaccomplish the raising of the pickup arm, there is provided on the shaft36 a cam 14 (Figs. 3 and 7). The cam 14 has a substantially circularperiphery provided with a single notch 15 which, during the playingof arecord, engages a downwardly turned finger 16 on a lever 11. The lever11 is pivotally mounted on a bracket 18 formed on .the under surface ofthe deck plate 2| and has resting thereon"'adja cent the nger 16. avertical pin 19. The pin "19 extends upwardly through the bushing 56 andis provided on its upper end with an adjusting screw engaging a shelf 8|secured within the pickup arm 53. A tension spring 82 is secured to apin 83 on the deck plate 2| and tov a threaded adjusting pin 84 engaginga suitable threaded opening in the lever 11. A lock nut 85 threadedlyengages the pin 84 and bears against the lower surface of the lever 11.Thus the spring 82 may be adjusted to compensate the weight of thepickup arm 53. At the commencement of the recordchanging cycle themovement of the cam 14 raises the lever 11, the pin 19 and the pickuparm 53 to elevate the stylus from the record.

For swinging the pickup arm to one side to clear the record, there isprovided on the cam shaft 36 a cam 86 having a recess 81 in itsperiphery provided with a beveled edge 88. A collar 89 is secured to thelower end of the bushing 56 and is 81. At the soon after record, the

thel recess ing cycle, from the roller 9|,

start of the record-changthe stylus has been lifted beveled edge 88strikes the pressing the same to the left in Fig. 3,

and thus rapidly moving the pickup. arm in the counterclockwise diredistance to clear the thereof from the turntable. of this movement, afinger 92, mounted by means of a pin 93 on the collar 59, strik ction inFig. 1 a.s`ui`1ficient record and permit removal In the latter partwhich is pivotally in a suitable slot es a pin 94 which is eccen-\trically formed on the lower end of an adjusting stud'95 which is inturn threadedly secured in the deck plate 2|. to a tension spring e arm92 has secured therewhich is wrapped about the collar 59 and secured tosaid collar at its opposite end. In the latter part of the outwardmovement of the pickup Varm, spring 96 is, therefore, ex-

tended and resists thi Near the end of the s movement. record-changingcycle after a new record has been placed on the turntable,

the cam 86 is rotated 86 to again reach the curs, the pickup arm 53 isagain about its vertical axis and does so clockwise direction of Fig. 1under the influence At the same time, the finger part of the notch 15and the -pickup arm is gradually lowered. The initial reof the spring96. 16 enters the rst sufliciently for the recess roller 9|. When thisocfree to move move in .the

turn movement of the pickup arm is stopped when a plate 91 secured tothe side thereof strikes the upper end of vertical slidingy (Fig. 3).

a pin 98 which is mounted for movement in the deck plate 2| The pin 98is pivotally connected at its lower end to a lever 99 which in turn ispivotally mounted on a stem der surface of deck plate va slottedconnection at its opposite end with the |00 secured to the un- 2I. Thelever 99 has pin 43. In the position assumed during the playing oftherecord, the

pin 43 is upraised as shown in Fig. 4, and, therefore, maintains the pin98 in the position shown in Fig.

3 with its upper end below the level of the plate 91. During therecord-changing cycle, however, the pin 43 has been moved downwardly andthe pin 98, therefore, is pressed upwardly sufficiently to intercept theplate 91 as the pickup arm is simultaneously swung inwardly and l tointercept said plate in the of the pickup arm. When plate 91 owered, butnot sufficiently outward-movement engages the pin 98,' further loweringof the pickup arm brings said plate to rest on the upper end of said 0|formed on stylus slightly a shoulder I pin with the above thenew recordon the turntable.v In this position, the stylus is above the startinggroove of the record and the pin`94 is so adjusted that nger 92 hasreached the limit of its movement relative to the collar 59 and thusthere is no further tendencyfor spring 96 to move the pickup arm. At theend of a complete rotation of shaft 36, the pin 43 ously described, andmoved downwardly, p gage the new record is moved upwardly, as previthepin 98 is, therefore, ermitting the stylus to en- |02 on the turntable.

Record transfer mechanism The relative positie magazine |83 are bestzine consists of a base ns of the turntable 30 and seen in Fig. 1. Themagaplate |08 mounted on the ments for the recepti on of records |01(Fig. 8).

" 09 secured to a The stem |05 may be moved in the direction parallel tothe axes of the records |81 by'mechanism hereinafter described, topreesnt any desired record opposite a transfer arm |08. The stem |05 mayalso be rotated about its vertical axis to turn the magazine to presentthe records with either face in position for playing.

For transferring records between the turntable and the magazine, thereis provided a carriage rock Shaft IIIl which is journaled in suitablebearings formed on the upper surface of the deck plate 2|. The carriage|09 consists of a ring having a central opening suiflciently large toadmit the turntable and having formed therewith an ear I for securingthe same to the rock shaft |I0. In the playing position of themechanism, the carriage |09 assumes the position shown in Fig. 3 withits upper surface slightly below the level of the turntable. In therecord-changing cycle after the pickup arm 53 has been moved to clearthe record, the rock shaft I I0 is rotated to raise the carriage intocontact with ther record |02 on the turntable and to lift the same intoa vertical position opposite the compartment in the magazine from whichthe recond was removed. In this movement, the record is retained on thecarriage by means of a lug 2 having a projecting portion extending overthe' top of the record, by a stationary guide plate I I3 secured to thedeck plate 2|, and by a second lug ||4 formed on the carriage |09. Inthe vertical position of the carriage |09 the record rests upon thehorizontal upper portion of an inclined trackway I I5 formed as a partof said carriage and is then rolled downwardly along said trackway toits position in the magazine, a transfer arm 'I I6 assisting in thismovement. In this rolling movement, the record is guided between thecarriage |89 and'a resilient guide nger ||1 secured to a bracket IIBmounted on the deck plate 2|.

When the magazine has been manipulated to. present a new record, thetransfer arm |08 ismoved to transfer the new record from the magazine upthe inclined trackway ||5 to a position in registry with the carriage|09. In this movement, the record isguided by the linger II1, by.

is provided with a slotted opening |23 engagingv The link |22 isconnected at its.

the shaft 36. other end to a lever |24 which is pivotally mounted on apin |25 secured to a, bracket |26 formed on the under surface of thedeck plate 2|. The lever |24 carries `at its upper end a gear segment|21 engaging agear segment |28 through a suitable opening in the deckplate 2|. 'I'he gear segment |28 is fixed to the shaft |10. The cam |20is so shaped that the roller strikes an outwardly inclineportion |29thereof at the proper time in the record-changing cycle to raise` thecarriage |09. The link |22 is thereby drawn to the left in Fig. 6 andthus rocks the shaft IIU to raise the carriage I 09 and record |82 tothevertical position. At the proper time in the record-changing cycle forthe loweringy of the carriage with a new record, the roller by a. keeper|30 carried by the cam |20 and is I2| is engaged moved thereby to theportion I3| of the cam' having the least diameter. gages the outersurface of the roller |2| and presses the lever |22 to the right in Fig.6 to rock the shaft and lower the carriage and new record to playingposition.

To operate the transfer arm I6 to assist in the movement ofthe recordfrom the carriage to the magazine, there is provided a cam |32 on theshaft 36 (Fig. 6). Said cam engages a v roller |33 carried by a lever|34 which is pivotally mounted on a stud secured on the under surface ofthe deck plate 2|. The opposite end of the leverY |34 is pivotallysecured to a vertical stem |36 which is mounted for vertical slidingmovement in a boss |31 formed on the deck plate 2|. The upper end of thestem |36 has a pin and slot connection with an arm |31 (Fig. 3) which issecured to a rock pin I 38 journaled on -the bracket ||8. The transferarm ||6 is vsecured trackway ||5 to its place in the magazine; In

this movement, the forked end |40 passes through suitable slots I4| inthe edge of the carriage |09. As soon as the projection |39 has passedthe roller |33, the arm ||6 returns by gravity to the position shown inFig. 3, in which position it does not interfere with future recordmovements.

For manipulating the transfer arm |08 to move records from the magazineto the carriage |09 there is provided on the cam shaft 36 a cam |42(Fig. 9). Said cam is engaged by a roller |43 carried on the lower endof a vertical stem |44 which is slidably guided within a tubular guidemember secured to the deck plate 2| The stem I 44 is prevented fromrotating in said guide member by a pin I4| operating in a slottedopening |41 in the side of the guide member. `At

its upper end, the stem |44 is provided with a pin |48 operating in aslotted opening |49 in the guide member I 45. The pin |48 has pivotedthereon a. link |50 pivotally connected at its other end to an arm I5I.The arm |5I is secured to a rock shaft 52 which is journaled in ahorizontal tubular member |53 in turn secured tothe tubular guide member|45. 'I'he transfer arm |00 is secured to the outer end of rock shaft|52 by means of a tting |54.

Prior to the time in the record-changing cycle for the return of arecord to the magazine, the roller |43 is engaged by an inwardlyinclined portion |55 of the cam |42. The weight of the vertical stem |44is sufficient to move the same downwardly, carrying with it the link |50and rocking the shaft |52 and transfer arm |08 in the counterclockwisedirection of Fig. 3 to place said arm at the right of the magazine in apositionA clear of the records in. the magazine. Thereafter the recordjust played is' returned to the magazine and the latter is manipulatedtoY present a new record, whereupon -the roller |43 is engaged by anoutwardly inclined portion |56 of the cam |42 which serves to lift thestem |44 and to rock the transfer arm |08 to remove thenew record fromthe magazine to the carriage The keeper |30 en- |09. It will be noticedin Fig. 3 that the magazine plates |06 are provided with arcuate upperedges which insure clearance between said plates I and the arm |08. Saidarm, therefore, engages nothing but the record in moving the same to thecarriage. During the playing of a record, the arm |08 remains in theposition shown in Fig. 3.

Magazine manipulating mechanism also has an extension-|60 carrying a.roller IGI' which travels in a -trackway |62 formed on the under surfaceof the deck plate 2| and serves to retain the carriage with the stem |05in a vertical position. A pin. |63 has one endloosely fitting a suitableopening in the carriage |51 and its outer end is flattened as best seenin Fig. 9 and engages a slot in a plate |64 secured to said carriage.Said pin carries a roller |65 `engaging the upper surface of the rod 58and has secured thereto a tension spring |66 secured at its upper end toa downwardly extending portion |61 of the carriage |51. Due to thetension of said spring the roller |65 carries a large part of the weightof the vmagazine and carriage |51 and thus reduces the frictionalresistance to horizontal movement of the same.

'I'he carriage |51 is reciprocated upon the rod |58 to place a desiredrecord opposite ythe transfer arm |08 by means of a. link |68 pivotallyconnected to said carriage by a pin |69. The opposite end of the link|68 is pivotally connected by a pin |10 with a crank |1| carried on theend of a rotatable shaft |12. The shaft |12 is journaled in a bracket|13 secured to the under surface of the deck plate 2| and in a selectorhousing |14 similarly secured. -Said shaft also carries a disk |15having adjacent the edge thereof a plurality of holes |16 adapted toengage a latch pin |11 which is slidably mounted in the selector housing|14 (Figs. 5 and 12). Theholes |16 are properly spaced in the disk |15so that each of the holes is engaged by the pin |11 when the magazine isin position with one of its records opposite the transfer arm |08. Sincein the present case there is shown a magazine adapted to contain 10records, there are shown 20 holes- `with a friction disk |8| secured toa disk |82 `in turn" secured to the shaft |12.

The pinion |18 is pressed by a compression spring |83 abuttingthereagainst and against a. collar |84 carried b-y the shaft |12. Saidspring, therefore, maintains a frictional engagement between the disksandv |8I. So long as the latch pin |11 engages one of the holes |16 theshaft |12 is held against rotation and slippage takes place between thedisks |80 and |8I.

' The latch pin |11 is normally held in engagement with one of saidholes by a compression spring positioned Within the selector housing |14but is Withdrawn by means of a. cam |86 engaging apin |81 secured to thelatch pin |11 l -and operating in `a slotted opening |88 in the housing|14. The cam |86 is carried by the cam shaft 36' and the operatingportion |89 thereof strikes the pin |81 at the proper time in therecord-changing cycle to begin the sliding movement of the magazine forselection of 'a new record. The operating portion of said cam issufficiently long to retain the latch pin |11 in its retracted positionlong enough for the shaft |12 to make one complete revolution and asmall fraction ofanother revolution. At the end of this time, the latchpin |11 is released and is free to enter the next of the holes |16 andthereby stop the rotation of shaft |12 and the movement of the magazine,if said movement has not already been stopped with another of said holesopposite the latch pin by selector mechanism to be hereinafterdescribed. The purpose of providing more than a complete revolution ofthe shaft |12 for each withdrawal of the latch pin |11, is to insurethat each of the holes |16 will pass the latch pin for possibleselection of thecorresponding record during each withdrawal and that thelatch pin, in case no selection has been made, will not return to thehole from which it was withdrawn. Preferably, the latch pin isvreturned, in case of no selection, to the hole next to that from whichit was withdrawn so that the records will be played in that case in theorder of their arrangement in the magazine.

For rotating the spindle |05 and magazine |02' to present opposite sidesof the records for playing, there is provided on the under end of saidstem a beveled gear |90 (Fig. 8) meshing with a beveled gear I9| whichis loosely mounted upon a stub shaft |92. 'I'he stub shaft |92 hassplined thereto a disk |93 carrying a friction disk |95 adapted toengage the rear face o'f the beveled gear |91. A ball thrust bearing |95is interposed between a shoulder |98 on the stub shaft and the innerface of the gear |9|. A bushing |91 is slidably mounted on the shaft 92and serves to journal said shaft in a downwardly extending portion |61of the carriage |51. A compression spring |98 abuts against an adjustingnut |99 carried by the shaft 92 and against a washer 200 which bearsupon the end of thebushing |91. By means 4of this construction, thespring |98 presses the gear |9| and friction disk |95 together, wherebythe stem |05 and the magazine |03 will be rotated by rotation ofthe stubshaft |92 unlessl they are mechanically held against rotation. The stubshaft |92 is connected by means of a universal connection 20| to anextensible shaft 202, the opposite end of which is connected by auniversal joint`203 to a stub shaft 204 which is journaled in thebracket |26 (Fig. 2). 'I'he stub shaft 204 carries a sprocket 205 whichis driven by a sprocket chain 208 trained about a sprocket 201 on thecam shaft 36. 'I'hus, the stub shaft |92 is continuously rotatedthroughout the entire record-changing cycle. l'

For mechancially holding the magazine against rotation, there isprovided a disk 208 secured to the stem |05 and having a single slot 209in the under surface thereofadapted to engage the upper ends .of a pairof pins 2| 0 and 2|| which are mounted for vertical sliding movement inparts of the carriage |5 1'(Fig. 9). The pins 2|0 and 2|| are pivotallyconnected to opposite ends of a lever 2|2 which is pivotally mounted ona pin 2|3 secured to the carriage |51. The length 0f the pins i5 511911tha.; Whn the lever 2 |2 is rocked to move one upward for engagementwith the disk 208 the other is moved'downwardly out of contacttherewith. Only one of said pins, therefore, may engage the slot 209 atany one time. Obviously, when the pin 2|0 engages said slot, therotation of the magazine will be stopped with one face of the record inposition for playing, while the opposite faces of the records will be inposition for playing when the rotation is stopped by the pin 2| I. Forconvenience of reference the faces of the records which will be playedwhen the magazine is stoppd by pin 2| 0 are designated -A in Fig. 9 andthose played when the magazine is stopped by pin 2||' are designated B.

For rocking the lever 2|2 to determine which face of the records shallbe played, there is provided a cam 2|4 on the shaft |12, said cam beingshown in perspective in Fig. 13. The cam is provided with an outer track2|5 and an inner track 2|B with intermediate portions 2| 1 connectingthe same. A roller 2|8 carried by a lever 2|9 engages said tracks. Thelever 2| 8 is pivotally mounted on a bracket 220, as best seen in Fig.14, and carries at its outer end a pin 22| positioned between a pair ofleaf springs 222 which are mounted on the end of a lever 223. y

The lever 223 is pivotally mounted on the bracket 220 concentricallywith the lever 2|9 and extends beyond said bracket. At its outer end,the lever 229 is formed with a central opening 224 having divergingsides in which there is engaged a pin 225 carried by an arm 226 of thelever 2|2. By means of this construction, the pin 2|0 is raised and thepin 2H is withdrawn when the roller 2|8 rides on the inner track 2 I6 ofthe cam, while the pin 2| i is upraised and the pin 2|0 is withdrawnwhen the roller 2|8 engages the vouter track 2|5. The leaf springs 222provide sufficient resilience in the connection so that the pins mayengage theunder surface of the disk 208 while said disk is in rotationand will be pressed into the slot 209 by the .action of said leafsprings when said slot moves into registry with the upraised pin. Thedivergent sides of the opening 220 insure uniform action between theroller 225 and the lever 223 for all horizontal positions of themagazine.

Referring to Fig. 5, it will be seen that the holes |15 are grouped onopposite sides of the disk |15, one group being designated A and theother B. 'I'here are provided spaces 221 and 228 between Vthe groups,which spaces are greater than those between individual holes in eachgroup and which pass latch pin |11 when the magazine is adjacent thelimits of its reciprocating movement. The cam 2|@ is so placed on theshaft |12 that the intermediate portions 2|1 thereof are engageds by theroller 2|8 during the time the spaces 221 and 228 are passing the latchpin |11. Therefore, the roller 2|8 rides on the inner track 2| 6 with.pin 2| 0 upraised during the time that the holes |18 of group A arepassing the latch pin v|11 and the magazine is mo'ving in one directionand saidI roller rides on the outer track 2| 5 with pin 2|| upraisedduring the time group B is passing said latch pin and the magazine ismoving in Ythe opposite direction. Thus the stopping of shaft |12 withthe latch pin |11 engaging one ofthe holes of group A results in playingthe face' A of the corresponding record while the engagement of latchpin |11 with the opposite hole of group B results in playing the face Bof the same record.

Selecting mechanism 1 buttons 229 equal in number to the number ofvslidably mounted on the selections available in the magazine countingboth sides of each record. Each button may be suitably designated by anumber or otherwise to indicate the selection corresponding thereto. Thebuttons are slidably mounted in a housing 230, a rear view of which isshown with parts cut away in Fig. 17. Each of the buttons 229 hasadjustably secured thereto by means of a set screw 23| a wire 232leading downwardly through a flexible tube 233 formed of coiled wire ina well known manner. Each of the tubes 233 has a projecting wire 234 onits upper end clamped between a pair of fixed plates 235, the wires 232passing freely through suitable holes in said plates. A lever 236pivotally mounted at 231 on the wall of the casing 238 projectsoutwardly through a suitable opening in said casing and has an upwardlyturned portion 238 en#- gaging a freely movable plate 239. The wires 232pass through suitable holes in said plate and thesamevmay be elevated bypressing the lever 236 to engage the lower ends of the buttons 229 toreturn the same to their upperposition when it is desired tocancel aselection already made.

The tubes 233 and, wire 232 leadto the selector housing |14 Where thetubes 233 are clamped by a clamp ring 240 in suitable grooves in saidcasing (Figs. 15 and 16). Said grooves register with openings saidcasing and inA which there are slidably mounted pins 242 attached attheir inner ends to the wires 232. Bythis means, each pin 242 may bepushed to the right in Fig. 15 by adownward pressure on thecorresponding push button 229. When so operated, the pins 242 extend'into the path of travel of a projection 243 formed on the face of thedisk |15. Said pins, there-` fore, serve to stop the rotation of theshaft |12 prior to the completion of its normal period of rotation. Eachof said pins is so positioned that it stops said rotation with the latchpin .|11 opposite the hole |16 corresponding to the record selected andin the group A. or B correspondingto the face of the record selected.When said latch pin is released by the cam |86, it enters said hole andlocks the record magazine in the proper position for removal of theselected record with the proper face of the record in position forplaying. Y

When the magazine has been so locked by the latch pin |11, a projection244 on a cam 245 carried by the shaft 36 engages a hub 246 which isshaft |12 and movesthe same to the left in Fig. 3. The hub 246 hassecured thereto a bar 241 (Fig. 5) carrying a pin 248 registering withan opening 24'9 in the disk |15.- Said pin also registersA with thepin242 which has' previously been used to stop the rotation'of the shaft|12 and the movement of said hub returns said pin 242 to its positionwithin the casing |14 and simultaneously returns the corresponding pushbutton 229 to its normal upper position. lA second pin 250, also carriedby the bar 241, also passes through a suitable opening in the disk |15and serves as a guide inthe movement ofthesaid bar. 'I'his pin, however,is not in registry' with the pins 242 and, therefore, has-no effectthereon. A leaf spring 25| interposed between the bar 241 and the disk|15 re- 24| extending through turns said bar to normal position as soonas the projection 244 has passed the same.

It will be' apparent that several of the buttons 229 may besimultaneously pressed, projecting their corresponding pins 242 into thepath of travel of the projection 243. The corresponding selections willbe played in the sequence in which said projection strikes the pins.

Summary of operation start rotation of cam shaft 36 and thereby inl-4`tiate the record-changing cycle. At the same time pin 98 is raised bythe downward movement of pin 43 (Fig. 3). The subsequent events in thecycle may be tabulated as follows, substantially inthe order of theiroccurrence:

1. The stylus 54 is raised from the record by the action of cam 14 andstem 19 (Fig. '7)

2. The pickup arm is swung clear of the record by the action of cam 86on roller 9| (Fig. '7). In this movement plate 91 passes over the top ofpin 98.

3. The carriage |89 is raised to the vertical position, carrying therecord with it, by the action 'of cam |28, link |34, lever |24 and gearsegments |21 and |28 (Fig. 6).

fi. The transfer arm |88 vis withdrawn to the right side of the magazineby the action of cam |42, stem |44 and associated parts (Figs. 3 and 9).This event may take place simultaneously with any of the preceding threeevents or with events Nos. 9 and 10 below. s

5. 'Transfer arm ||6 is moved clockwise in Fig. 3 to roll the recordinto the magazine and is immediately returned to normal position, all byaction of point |39`lof cam |32, lever |34, stem |36 and associatedparts (Fig. 6).

6. Latch vpin |11 is withdrawn from the hole |16 in disk |15 by cam |86(Figs. 5 and 12) to permit the friction connection |80|8| to rotateshaft |12 and consequently move the magazine by crank |1| and link |68(Fig. 9). Assuming that the parts are initially in the positionsshown inFigs. 5 and 9 and that a push button 229 has been pressed to select theface B of one of the records, a pin 242 will be in position to interceptprojection 243 and stop the rotation of shaft |12 with the correspondinghole of group B opposite latch pin |11. In moving to this position,space 221 passes pin |11 and simultaneously roller 2|8 moves through theintermediate portion 2|1 of cam 2|4 and is engaged by the outer track2|5 of said cam (Figs. 13 and 14) to withdraw pin 2| 0 and raise pin 2||against the under side of disk 208. The withdrawal of pin 2|0 permitsthe friction connection |9|-|94 to rotate the magazine. The rotation isstopped at the end of a half revolution when slot 299 engages pin 2||and said pin is pressed into said slot by one of the leaf springs 222.Thus the magazine has been turned topresent faces B for playing.Simultaneously with the rotation of the magazine', the horizontalmovement thereof continues until stopped by the engagement of theprojection 243 with the projecting pin 242 with the proper hole |16 ofgroup B opposite the latch pin |11. Pin |11 is then released by cam |86,to enter said hole |16 and lock the magazine aiaaeia in the properposition for removal of the selected record.

6a. Assuming that the parts are initially in the positions of Figs. 5and 9 but the selection made is in group A, the horizontal and rotativemovements of the magazine are started as before. However, the rotationof shaft |12 and movement of the magazine continue until the proper hole|16 of`group A registers with the pin |11. In this movement, the roller2| 8 is returned to the inner track 2|6 of cam 2|4 when space 228 passespin |11 and the pins 2|0 and 2|| are again shifted to raise pin 2|0 andwithdraw pin 2| The nal stopping of the rotation of the magazine doesnot then take place until a complete revolution has been made, returningthe faces A of the records to the playing position. Preferably thesecond shift of the pins 2|0 and- 2|| takes place before a halfrevolution of the magazine is completed so there will be no-interruptionin said rotation. In the example assumed, the pin |11 is initially inthe last hole of group A. Obviously, if the start is made from one ofthe preceding holes in said group and a, succeeding hole in the group isselected, there will be no rotation of the magazine, since the movementof shaft |12 will be stopped before the roller 2| 8 moves from the innertrack of the cam 2|4. l

6b. Assuming again that a start is made from the position of Figs. 5 and9 but no selection has been made, thevhorizontal and rotative movementsof the magazine are initiated as before. None Vof the pins 242 are inposition to stop the rotation ofr shaft |12. Soonv after the hole |16from which pin |11 was withdrawn passes said pin at the end of acomplete revolution, said pin is released by the cam |86 and engages theface of disk |15. When said disk rotates far enough to bring the` nexthole |16 (in the assumed case the first hole in group B) opposite pin|11, said pin latches in said hole and stops shaft |12. In this rotationthe pins 2|0 and 2H are shifted three times, once to start the rotationof the maga-zine by withdrawal of pin- 2|0 when roller 2| 8 moves to theouter track as space 221 first passes pin |11, again to Withdraw pin 2||and raise pin 2|0 when roller 2|8 returns to the inner track as space228 passes pin |11, and 'a third time to again withdraw pin 2|0 andraise pin 2| l when roller 2 I8 again moves to the outer ,trackJ asspace 221 again passes pin |11. The final stoppage -of the magazinerotation then occurswith the B faces of therecords in playing position.The speed of rotation of the magazine may be m/ade suiciently slow bysuitable choice of its driving gears l|90|9| so that all three shiftsmay be made before a. half revolution is completed, in which case thefinal stoppage takes place at the end of a half revolution. This, how`ever, results in unnecessarily slow operation in other cases, so it ispreferable to provide a faster speed Il, of rotation and thus permit themagazine to'l rotate through one and one-half revolutions beforestopping in this particular case. The maximum of one'and a halfrevolutions at the higher speed may be made in less time than themaximum of one revolution re quired when the slower speed is used. Whenthe start is made from any but the last hole |16 in a, group, only onecomplete revolution is made, the final stopping occurring at the nexthole inthe same group.

'1. The pin 242 which was used to stop the magazine movement is returnedto its place in casing |16 by the action of cam 245, bar 241 and pin 248(Figs. 2 and 5), bar 241 being immediately returned by spring 25|. Thisevent may take place at any time. during any 'of the succeeding events.v

8. Arm |08 is rocked to move the newly selected record from the magazineto carriage |09, by the action of cam |42, stem |44 and associated parts(FigsS and 9).

9. Carriage |09 is lowered to place the new record on the turntable 30,by the action of keeper |30 of cam |20, link |22, and gear segments |21and |28 (Fig. 6).

l0. The pickup arm '53 is released for inward movement by the arrival ofthe Arecess 81 of cam 86 opposite roller 9| and said pickup arm movesinwardly under the influence of spring 96 (Figs. 7 and 11). At the sametime the pickup arm is lowered by the action of cam 14 a suiicientdistance for -plate 91 to strike pin 98 and stop the inward movement ofthe pickup larm with the stylus above the initial groove of the record.Further lowering of the ypickup arm by cam 14 brings plate 91 to rest onthe shoulder |0| of pin with the stylus still slightly. above therecord. 11. The rotation of the cam shaft 36 is stopped bythe action ofpoint 10 of cam'69 engaging block 1| to press clutch element 32upwardlyout of engagement with its mating member 33 (Fig. 4). At thesame time the'upward movement of pin 43 lowers vpin 98 out ofengagementwith plate 91 and thus placesthe stylus on the record to commence theplaying thereo 'I'he operation of the motor 23 may be ,electri-f callycontrolled by any well known method either by manual switches orcoincontrolled switches,

many suitable arrangements being commercially well known.

The foregoing specification describes t`he invention in its presentpreferred form. Changes in the details thereof may be made by thoseskilled in the art without departing froml the ses scope of theinvention as defined bythe appended f mounting said magazine upon saidcarriage forv rotative movement so as to reverse the records carriedthereby, means for simultaneously reciprocating said carriage androtating said magazine thereon, selective means for controllingthereciprocal movement of said carriage and rotation of said magazine toface r`the selected side of a selected record in a predeterminedposition for transfer to said turntable, and means actuatedupon theselective positioning of the magazine relative thereto for transferringthe selected record thereto with the selected side in tion.

2. In an automatic record changing phonoplaying posigraph, thecombination with a turntable and reproducer, of a magazine adapted\ tohold a plurality of records]l in vertical,A parallel relation, means forsupporting said magazine to one side of the turntable for reciprocableand rotary movement relative thereto, means for transferring a recordfrom the magazine,Y to the turnt-able and returning it from theturntable tothe magazine, means for automatically moving said magazineto progressively present said records to to arrest the movement thereofand render inef-:

fective the automatic progressive positioning thereof in'sequence, topresent the selected side of a selected record for transfer to saidturntable.

3. In an automatic record changing phonograph, the combination witha`turntable and a reproducer, of a magazine adapted to holda plur-alityof records in vertical parallel relation, means for mounting saidmagazine for reciprocable and rotative movement relative to saidturntable, means for registering a plurality of selections for therespectivev records and either side thereof prior to playing, mechanismoperatively connected with said magazine and controlled by saidregistering means for automatically reciprocating and rotating saidmagazine to a selected position relative to said turntable to presentthe selected side of a selected record for transfer thereto in sequence,and means actuated upon the positioning of said magazine forsequentiallytransferring the respective preselected records to the turntableWithpxthe respective selected sides thereof in playing position.

4. In an automatic record changing phonograph, the combination with aturntable and a reproducer, of a magazine adapted to hold a plurality ofrecords in vertical parallel relation,

a reciprocating carriage for rotatably supporting said magazine, meansfor .reciprocating said magazine, a plurality of selecting means forarresting the movement of said magazine in predetermined positionsrespectively for positioning selected records for transfer to saidturntable, manually actuated means for registering a plurality of saidselecting means in advance of arresting said magazine, meansloperatively'connected with said magazine and selecting means forreversing the position of said magazine to present opposite sides ofsaid recbrds for-transfer to playing position on said turntable, andmeans actuated upon positioning of said magazine for transferring saidrecord to the'turntable with the selected side in playing position.`

5. In an automatic record changing phonograph, the combination with aturntable and a reproducer, of a magazine adapted to hold a pluralityofrecords in vertical parallel relation,

means for supporting said magazine for reciprocating and rotatingmovement relative to said turntable, a selecting member identified with'each side of each of said records, means for actuating said selectingmembers for registering a plurality'of selections for the respectiverecords and either side thereof prior to playing,I mechanism operativelyconnected with said magazine controlled by said selecting members whenactuated for automatically positioning said magazine relative to saidturntable to present the selected side of a selected record for transferthereto, and means actuated upon the positioning of said magazine fortransferring the respective preselected records to the turntable withthe respective selected sides thereofl in playing position.

6. In an automatic record changing phonograph, the combination with aturntable and a reproducer, of a magazine adapted to hold 4a pluralityof records in vertical parallel relation, a

reciprocating carriage lfor'rotatablf,1 supporting i riage, meansoperatively connected with said magazine for reversing said magazinethereon, a plurality of record selecting members movable in position toarrest the movement of said carriage at predetermined positionsrespectively relative to said turntable for positioning selected recordsfor'tran'sfer to said turntable and controlling said reversing means forpresenting a selected side of said selected record for transfer toplaying position, and means actuated upon the selected positioning ofsaid magazine for transferring said record lto the .turntable with theselected side in playing position.

7. In an automatic record changing phonograph, the combination with aturntable anda reproducer, of a magazine slid-ably and rotatably mountedto one side of 'said turntable adapted to hold a plurality of records invertical parallel atingsaid members for-registering a plurality ofselections for the respective records and either side thereof prior toplaying, mechanism for reciprocating and rotating said magazine todiiferent positions relative to said turntable, means controlled by eachof said members when actuated fpr arresting said magazine in apredetermined selected position, to present a selected side'of aselected record for playing, and means for transferring said selectedrecord to the turntable with its selected side in playing position.

8. In an automatic record changing phonograph, the combination with aturntable and a reproducer, of a magazine adapted to hold'a plurality ofrecords vin vertical parallel relation, a slidably mounted 4carriage forsupporting said magazine relative to said turntable for positioning aselected record for transfer thereto, an actuated member connected withsaid carriage and movable for reciprocating the same,-a plurality ofstop members selectively actuated to project into the path of saidactuated member for arresting its movement to selectively position themagazine, means for driving said actuated member, means operativelyconnected with said magazineand controlled by said actuated member whenarrested by said stop members in certain positions for rotating saidmagazinea half revolution to reverse the records carried thereby toposition the selected side of a selected record relative to saidturntable for transfer thereto in playing position, and means fortransferring a record from the magazine to the turntable and returningit tothe magazine after playing.

9. In an automatic record changing phonograph, the combination with aturntable and a reproducer, of a magazine adapted to hold a plurality ofrecords in vertical parallel relation, manually actuatedmembers forselecting arecord and the side thereof to be played, means forautomatically reciprocating and rotatingthemagazine relative to theturntable for positioning a selected record for transferthereto, meansoperated by said membersfor arresting the magazine in its reciprocatory'and rotary movement in a position to present the selected record withthe selected side thereof facing in a predetermined position relativeYto the turntable, and means for transferring said record to theturntable.

10. In an automatic record changing phonograph, the combination'with aturntable, a transfer member and a reproducer, of a magazine adapted tohold a plurality of records in vertical parallel relation, means for'supporting said magazine to one'side of the turntable for reciprocableand rotarymovement, record selective means, mechanism controlled by saidselective means for reciprocating and rotating the magazine relative tosaid transfer member to face the 'selected side of a selected record inpredeterturntabe with the selected side in playing posil tion.-

11. In an automatic'record changing phonograph, the combination with aturntable, a transfer member and reproducer, of a magazine adapted tohold a plurality of records in vertical parallel relation, means forsupporting said magazine for reciprocable and rotary movement, a

drive member, means driven by said member for reciprocating saidmagazine, means driven by said member for rotating said magazine, aplurality of record selective members, means actuated thereby forarresting the movement of the drive member at a selected position forcausing said magazine to be selectively positioned to present a selectedrecord with the selected side thereof faced in a predetermined directionrelative to said transfer member, and means for actuating said transfermember upon the positioning of said magazine for transferring the saidrecordto the turntable with the selected side in playing position.

- RALPH R. ERBE.

